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EP 3 619 375 A1

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(43) Date of publication: 11.03.2020 Bulletin 2020/11 (21) Application number: 17908539.4 (22) Date of filing: 03.05.2017

(51) International Patent Classification (IPC):  E04F 15/02(2006.01) B32B 27/08(2006.01) E04F 15/18(2006.01) C08L 27/06(2006.01) (86) International application number: PCT/CN2017/082829 (87) International publication number: WO 2018/201309 (08.11.2018 Gazette 2018/45)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA MD (71) Applicant: Taizhou Huali Plastic Co., Ltd. Jiangyan, Jiangsu 225527 (CN)	(72) Inventors: CHENG, Quanshan Jiangyan, Jiangsu 225527 (CN) XUE, Genxiang Jiangyan, Jiangsu 225527 (CN) YUAN, Jun Jiangyan, Jiangsu 225527 (CN) (74) Representative: Keenway Patentanwälte Neumann Heine Taruttis  PartG mbB Postfach 10 33 63 40024 Düsseldorf 40024 Düsseldorf (DE)